The circuit given as attachment is a current to voltage converter designed to convert input current of pA range to voltage and to amplify it so that the output voltage is within a measurable range of 0-10V.The pA current input is given to LMC662CN by connecting mV source in series with 1 GigaOhm resistance
I tried this circuit on PCB but it is giving a constant output voltage of 10.722V.The output remains as such even if you remove the input voltage of mV range.
Can anyone please tell me what could be wrong?
I tried this circuit on PCB but it is giving a constant output voltage of 10.722V.The output remains as such even if you remove the input voltage of mV range.
Can anyone please tell me what could be wrong?